@misc{KVANT_2021_9_a22,
     title = {{\CYRE}{\CYRG}{\CYREREV} {\cyrp}{\cyro} {\cyrf}{\cyri}{\cyrz}{\cyri}{\cyrk}{\cyre}},
     journal = {Kvant},
     pages = {61--63},
     year = {2021},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2021_9_a22/}
}